WBesi WBesj WBesk WBesy WCbrt WCelli1 WCelli2 WCelli3 WDconst WDigamma WE_1 WEi WExpm1 WFma WHypot WLi WLog1p WTrigamma

WLog1p() Function WLog1p ( X As  Double ) ln(1 + x) Purpose WLog1p computes ln(1 + x). It may be more accurate than using Log(1 + X) when x is near 0. Returns ln(1 + x). Parameters [in] X Argument x (X > -1)